548
FNUS75 KBYZ 131650
FWSBYZ
SPOT FORECAST FOR N BRIDGERS PILE RX...USFS
NATIONAL WEATHER SERVICE BILLINGS MT
1050 AM MDT TUE OCT 13 2026
FORECAST IS BASED ON IGNITION TIME OF 1000 MDT ON OCTOBER 14.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.
PLEASE CONTACT OUR OFFICE IF YOU HAVE QUESTIONS
OR CONCERNS WITH THIS FORECAST.
DISCUSSION
A GRADUAL WARMING TREND IS FORECAST THROUGH THE WEEK WITH
SNOWMELT DURING THE DAYTIME HOURS LIKELY. WINDS SHOULD REMAIN
FAIRLY LIGHT AND VARIABLE WITH DIURNAL, TERRAIN DRIVEN WINDS IN
THE VALLEYS AND NORTHERLY WINDS AT THE RIDGETOPS. SNOWPACK EXTENT
MAY IMPACT WIND STRENGTH AND INTENSITY. A NW GUST TO 20 MPH
WEDNESDAY EVENING IS POSSIBLE. MIXING HEIGHT SHOULD EXCEED 2,000
FT AGL EVERY AFTERNOON STARTING THURSDAY. WMR
WEDNESDAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....39-43.
MIN HUMIDITY........47-51 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT AND VARIABLE BECOMING NORTHWEST BETWEEN
5 TO 10 MPH IN THE AFTERNOON.
RIDGETOP...........NORTHWEST BETWEEN 10 AND 15 MPH.
MIXING HEIGHT.......INCREASING TO 1800 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHWEST 10 MPH.
TIME (MDT) 10A 11A 12P 1PM 2PM 3PM 4PM 5PM
SKY (%).........25 25 11 11 11 17 17 17
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF LTNG (%).0 0 0 0 0 0 0 0
TEMP............32 35 39 38 40 41 38 38
RH..............65 56 50 50 49 49 55 61
20 FT WIND DIR..NW NW NW NW NW NW NW NW
20 FT WIND SPD..4 4 4 4 4 5 5 5
20 FT WIND GUST.6 7 8 8 10 10 12 10
WEDNESDAY NIGHT
SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MIN TEMPERATURE.....29-33.
MAX HUMIDITY........69-73 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......BECOMING LIGHT DOWNSLOPE / DOWN-VALLEY WINDS.
RIDGETOP...........NORTH AT 10 TO 15 MPH.
MIXING HEIGHT.......DECREASING TO 300 FT AGL OVERNIGHT.
TRANSPORT WINDS.....NORTH AROUND 10 MPH.
TIME (MDT) 6PM 7PM 8PM 9PM 10P 11P MID 1AM 2AM 3AM 4AM 5AM
SKY (%).........19 19 19 41 41 41 30 30 30 15 15 15
WEATHER COV.....
WEATHER TYPE....
TSTM COV........
CHC OF LTNG (%).0 0 0 0 0 0 0 0 0 0 0 0
TEMP............38 33 32 34 33 33 32 32 33 33 32 32
RH..............58 66 68 66 67 67 68 67 67 66 66 67
20 FT WIND DIR..N N N N N N N N N N N N
20 FT WIND SPD..4 4 4 4 4 4 3 3 3 3 3 3
20 FT WIND GUST.10 8 8 8 8 8 6 6 6 6 6 6
THURSDAY
SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
CHANCE OF LIGHTNING.0 PERCENT.
MAX TEMPERATURE.....48-52.
MIN HUMIDITY........45-49 PERCENT.
WIND (20 FT)........
SLOPE/VALLEY.......LIGHT UPSLOPE / UP-VALLEY WINDS.
RIDGETOP...........NORTH-NORTHEAST BETWEEN 5 AND 10 MPH.
MIXING HEIGHT.......INCREASING TO 2700 FT AGL IN THE AFTERNOON.
TRANSPORT WINDS.....NORTHEAST BETWEEN 5 AND 10 MPH.
TIME (MDT) 6 AM 9 AM NOON 3 PM
SKY (%).........13 12 11 5
WEATHER COV.....
WEATHER TYPE....NONE NONE NONE NONE
TSTM COV........
CHC OF LTNG (%).0 0 0 0
TEMP............31 34 47 50
RH..............68 71 52 47
20 FT WIND......W 3G5 S 3G4 S 3G5 S 5G6
FORECASTER...MCKEOWN-ROBBIE/ARENDS
REQUESTED BY...JAMES RAY
TYPE OF REQUEST...PRESCRIBED
.TAG 2623702.0/BYZ
.DELDT 10/13/26
.FORMATTERVERSION 2.0.0
.EMAIL JAMES.M.RAY@USDA.GOV
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